Speed Gun Placement

Discussion in 'Other Equipment' started by bumfluff, Jun 23, 2008.

  1. bumfluff

    bumfluff Semi-Pro

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    I have access to a speed gun for a few days, I think it is called a SpeedTrax. I gave it a bit of a go and it seems pretty variable although I did expect that. I did manage to get a good few in the 90s with one at 98mph which I was fairly proud of even though i should take it with a pinch of salt.

    Anyway, what do you guys suggest as the best way/place to place the unit so that the readings are as accurate as possible? and maybe where the serves should be to get the best results?

    Thanks
     
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  2. meowmix

    meowmix Hall of Fame

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    I remember these radar guns... fun things!

    Place them right in the center of the court right on the line right before the net. Try to serve in the singles position and aim for a serve down the T. That's the way to get the FASTEST readings.
     
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  3. bumfluff

    bumfluff Semi-Pro

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    I take it you aim the radar stright towards the server?
     
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  4. babolat141

    babolat141 Rookie

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    I have always wondered during a pro match were is the ball when it reads the serve is it right when it goes over the net or is it a little before it goes over or maby after it bounces could any one elaborate?
     
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  5. pfchang

    pfchang Professional

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    i think you place it on your side of the court right by the post you're serving too.
     
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  6. Chace

    Chace Semi-Pro

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    I heard Cahill and Gilbert talking about radar guns and where the ball is picked up. I am pretty sure that they said it picks up the ball really close to contact, like 6 to 12 inches after the ball leaves the racket. In the past ESPN has also shown a computerized chart of the serve speed from the point of contact to what the speed is when it reaches the returner. I remember that by the time the ball reached the returner it was no where near the speed at contact. I can't recall the exact numbers but i think for a serve that was hit around 120mph was only going around 70-80mph when it reached the returner.
     
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  7. ilovetennis212

    ilovetennis212 Professional

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    I heard too
     
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  8. Smasher08

    Smasher08 Hall of Fame

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    Here's an infographic from a video the BBC did for the SW19 final in 2008, showing how much the grass had slowed down first serves of the same initial pace.

    [​IMG]
     
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